Composition-filled brake-shoe.



' H. JONLS. COMPOSITION FILLED BRAKE SHOE. l

AAAAAAAAAAAAAAAAAAA 10, 1913.

ATTORNEY v vPatented Sept. 30, 1913.

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l H. JONES'. OOOOOOOOOOOOOOOOO BRAKE SHOE.

APPLICATION 111111111111111 3.

H. JONES. COMPOSITION FILLED BRAKE sIIOE.

PPPP IGATION FILED MAY 10 1913.

, 1,074,366. Patented Sept.80,1913.

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www MHH Han-BY JONES, orsurrnnNNnw venir, Assia-Noa fro AMERICAN BRAKE"snes e, roUNnnY ooMraNY, or MA1-iwan, NEW massif, a ooaronATroN 0F NEWJERSEY.

COMPOSITION-FILLED BRAKESHOE.

Specication of Letters Patent.

Patented Sept. 30, i913.

Application filed May 10, 1913. Serial No. 765,883.

To allen/wm t may concern.'

Be it known that l, HARRY JONES, a citizen ofr the United States, and aresident of Suiiern, in the county of Rockland and State' of New York,have made and inventedf certain new and useful Improvements inComposition-Filled Brake-Shoes, of which the following is aspeciication.

AMy invention relates to an improvement in brake shoes, and moreparticularly to thattype or style thereof commonly known and `referredtoas a composition or filled shoe. Brake shoes ot' this type require acasing,fshell or other support, of a forni appropriateto hold thecomposition or body material in order to prevent the latter frombreaking or crumbling while the shoe is in use, r during transportation.This supporting member, usually designed more particularly for thepurpose of holding lthe body materialratherv than to assist in any wayin the rictional qualities of the shoe, is usually made, in the form ofa. shell, either being cast in that form, or pressed or stamped 5 upromsheet metal, the ends, sides and top l,being usually made integral orin one piece. In the shell is contained the frictional material,preferably a composition, which, contacting with the tread of the wheel,gradu- 0 ally wears away while the shoe is in service.

A,s the sides and ends also contact with the -tread of the wheel, theywear away with the body material until such time as the shoe becomes toothin or fragile for further use. The back of the shoe, usually madeintegral with the sides and ends, with the remaining portion. oftherbody material, is then scrapped' or discarded as unfit for furtheruse or service, this scrap, comprising largely the metal,

back, entailing a severe loss.

,'The object of my invention is to so construct the back that'thescrapping thereof may be avoided, the several parts being so constructedand arranged that the partially worn ends'may be removed, and new onessubstituted therefor, the back itself being saved and utilized by addingtheretonew of the wearing' :tace of the shoe, it being understood thatthe end blocks and composition are worn away simultaneously, and thatthe free ends of the block form a part of the wearing face of the shoe.

With the Aabove and other ends in view, the invention consists in theimproved composition or filled brake shoe illustrated in theaccompanying drawing, and hereinafter described'and claimed, and in suchvaria` tions and. modiiications thereof as will be obvious to thoseskilled in the art to which my invention relates. I

ln the accompanying drawings, Figure l is a View in perspective ot' abrake shoe back, which may be utilized in connection with my invention,the detachable ends being removed. Fig. 9. is a view in perspective ofone of the detachable ends. Fig'. 3 is a sectional View taken upon theline 3-3 of Fig. e, a portion of the body material being removed. Fig. iis a top plan view of a back having' the detachable end secured thereto,Fig. 5 is a sectional View taken on t-he line 5--5 of Fig. 3. Fig. 6y isa longitudinal sectional view of a shoe employing a modified forni otdetachable end. F ig. '7 is a side view of a brake shoe constructed inaccordance with my invention, and 'partly in section and partly inelevation, and illustrating another' form of detachable end. llig. 8 isa sectional view taken on. the line Y8--8 of Fig. 7, looking in thedirection of the arrow. Fig. 9 is a similar view to that illustrated inFig. 7, showing still another 'form of Vdetachable end. Fig. 10 is asectional viewtaken on the line 10-l0 of Fig.

9, looking in the direction as indicated by-A the arrow. Fig. l1 is aview in perspectivev of one torni of detachable end, and Fig. l2 a viewin perspective of-fa brake shoe back, employing detachable. ends, and amodied form of key lng.v

Referring to the drawings, the reference numeral l1 designates asupporting backv shown as formed from a blank, out 'from a plate oi'wrought iron or .mild steel, say from about one-eighth to'three-sixteenths inch iny thickness, and bent and shaped, by means of asuitable press, to provide two longitudinally extending side danges 12,two upwardly extending end stops 13, and inwardly extending lugs 111-,although the particular sha e or forni, the material, and structuraleatures ci the. supporting back,

are not involved in'my invention, broadly considered.

Detachably secured to the supporting back 11 are the ends 1.5,preferably extending to the wearing'face of the finished shoe, andattached .to the back by means of a hook 16 rovided upon each end orblock, and whic hook extends through a' hole or opening l7 provided'inthe back andl along the upper side thereof toward the end stop 13, thehook being somewhat narrower than the back to form guide lugs adapted tobe assembled with a standard form of head.

Figs. 2 to 5 or blocks l5, and hooks 16, as formed from a metal blank,by suitable bending and shaping operations, the hook being 1n the formof a loop to thereby increase the height of the guide lug formed by it,`although it will of course be understood that the ends or blocks,including the hook, may be formed from cast metal. These ends or blocks,formed as above described, are preferably provided with side wings orflanges 18, to assist in holding the body material or composition inplace upon the back 11, as hereinafter described.

The body 20 of the sboeris made of a composition filling, preferablynon-metallic or semi-metallic, and pressed on and vanchored to the steelback 1l, while the composition is in a plastic condition, this bodymaterial being contained within the side flanges 18 of the detachableends 15.

The back 11 is provided also with a lug 25, which, as illustrated inseveral of the figures of the drawings, may be made of a separate piecefrom the back 11, or integral therewith, as illustrated in Fig. l2,wherein the back is composed of the' two sides 26 'connected by the lug27 provided with vertical transverse plates' 28, 'the latter beingcontinuous into the anchorage plates 29, the sides 26 being bentdownwardly, to form the side flanges 30. It will be understood, however,that the lug may be made and assembled with the back in any suitableway, as such forms no part of my present invention.

It will be further understood that the removable ends may also assumedifferent forms or shapes, as, for instance, in Fig. 6,

these ends are shown in the form of metal blocks 19, preferably eastwith hook 21 on the upper side thereoil` in order to engage withthe back11 or, if desired, these blocks may assume the shape as illustrated inFigs. 7 and 8, the inner walls of the block '22 being slightly beveledtoward their outer ends, and provided with a hook 23 on the upper sidethereof; or, as illustrated in Figs. 9 and l0, the blocks 24; may besomewhat recessed, or as illustrated in Fig. 11,

may be provided with the wings 32, a hook 31 being cast on the upper.side as in the former instances.

of the drawing show the ends4 Lof/eene By thus varying the size andshape of the detachable ends, the length or area of the compositionfilling may also be increased or decreased as desired whereby to controlvthe frictional effect of' the com' osition filling of which the body ismade. protection afiorded by the ends to the body material of the shoe,they also lend to the finished shoe a composte Wearing face, itbcingpossible to cast these ends or blocks of hard or soft cast iron, orof mild steel, according to the nature of the material employed in theformation of the body of the shoe, the area Vof this cast metal blockbeing increased or decreased as it ma be desired to increase or decreasethe length or the area of the composition filling forming the body, theintention being to apply to the steel back a-metal end extending to theface of the shoe to protect the composition filling from being rokenaway in handling or while the shoe is in service, and also to give anydesired proportion of metal in the wearing face of the shoe, to co-actwith the composition filling to effect the desirable wea-ring andfrictional surface for the shoe. This feature is particularly anadvantageous one, in that the relative proportion of metal and fillingmay be varied in accordance with the 7G n addition to the use or serviceto which the shoe is'to be v subjected, as while one surface may requirea large roportion of composition filling .to give hig require a largepro ortion of cast metal in the Wearing face 0E the shoe, as comparedwith the composition filling, to give a less amount of friction.

From the foregoing it will be understood that after the shoe has beenworn down in service, including the detachable ends, the remainingportions of the filling ma moved or detached from the back, tlie ends orblocks also detached therefro1n,"leaving the steel back available forthe attachment of new ends and 'for a new body; in other words,providing a structure which will enable the steel back to be usedrepeatedly, and thus overcoming the loss incurred by the scrappingthereo l wish it to be understood that I do not limit or restrict mypresent invention to the shape or contour of the back, tothe type orstyle of attaching lug, nor to an particular structure of detachable endor lilock; nor to the particular composition of material employed in theformation of the body of the shoe, as all ofv these elements may bealtered or varied as desired, in accordance with the use or service towhich the shoe is to be put, but, on the contrary, intend to be re.

friction, yet another surface may Y include herein any and all ty es orstruc-v back and to include `ends or blocks in the term removable allstructures which may be detachably secured in any position with the backfor the purpose of retaining or assisting in retaining the body materialin place upon the back and to avoid injury to said body during serviceor transportation.

What I claim is l. An end a brake shoe and adapted to be locked to saidback.

2. An end piece for use in connection with the back for a brake shoe andadapted to be detachably secured to said back.

3. An end piece for use in connection with the back for a brake shoe,said end piece bey ing provided with means'A for lockingthe same` tosaid back.

end piece for use in connection with the bac'k for a brake shoe, saidend piece being provided with means for detachably securing the same tosaid back.

5. A back for a brake shoe provided with detachable ends.

6. A back for a brake shoe constructed with interlocking detachableends.

7. A back for a brake vshoe provided with detachable ends, said endsbeing formed with hooks to interlock with said back.

8. A back for a brake shoe provided with detachable ends, said endsbeing provided with hooks 4to interlock with said back Iand formingguide lugs.

9, A back for a brake shoe provided withv detachable interlocking ends,said ends beingyormed with an integral hoolr and guide lugs projectingthrough said back.

10. In a brake shoe, a metallic supporting back; means whereby the shoecured to a suitable support; metallic blocks separate from said curedthereto, and which blocks extend to the wearing face of the shoe; and amass of materialsupported by said back and the space between saidblocks.

ll. In a'brake shoe, a metallic supporting back; means whereby the shoemay be secured to a suitable support; two detachable metallic blockssecured one at each end of said back and which blockspxtendrto thewearing face of the shoe; and a' mass of material supported by said backand filling the suing space between said blocks.

12. In a brake shoe, back; means whereby cured to a suitable support;two metallic blocks having each a hook portion adapted to engage saidback, which blocks are loa metallic supporting piece for use with theback forl back and detachably sew the lshoe may be setending to thewearing face ofthe shoe and having each a hook portion adapted to eX-tend through an opening provided in said back and along the upper sidethereof, and which hook'portions terminate adjacent said end stops; anda mass of material supported by said back and filling the space betweensaid blocks.

14. In a brake shoe, a metallic supporting back; means whereby the shoemay be secured to a suitable support; metallic blocks detachably securedto said back and projecting toward the wearing face of the shoe; and amass of material supported by said back and iilling the space betweensaid blocks.

l5. In a brake shoe,

a metallic supporting back; means whereby the shoe may be secured to asuitable support; two metallic' blocks detachably secured to said backadjacent the ends thereof and which blocks project toward the wearingface of the shoe;

and a mass of material supported by said back and tting the spacebetween said blocks.

1G. In a brake shoe, a metallic supporting back; and two metallic blockshaving each a hook portion adapted to engage said back and which blocksproject toward the wearing face of the shoe.

17. Ina brake shoe, a metallic supporting back having an opening; and ametallic block having a hook portion adapted to eX- tend through saidopening and along the upper surface of said back, and which blockprojects toward the wearing face of the shoe.

18. In a brake shoe, a metallic su porting back; and two metallic blocksdetaclliably secured to said back adj acent the ends thereof and whichblocks project toward the wearing face of the shoe. Y

.Signed at Suii'ern, in the county of Rockland and State of New Yorkthis 8 day of May, A. D. 1913.

HARRY JONES. Witnesses:

W. M. POTTER, CHAs. C. MOORE.

